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Local Area Network
Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations
4,003 Questions
How many Categories of UTP cable exist?
Seven different UTP Cable..
Category 3, Category 4, Category 5, Category 5e, Category 6, Category 6e, & Category 7...
What is metropolitan area network?
A metropolitan area network (MAN) is a network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN). The term is applied to the interconnection of networks in a city into a single larger network (which may then also offer efficient connection to a wide area network). It is also used to mean the interconnection of several local area networks by bridging them with backbone lines. The latter usage is also sometimes referred to as a campus network.
What are the proper requirements for a 10Base2 network?
The requirements for a 10Base2 network:
RG58u Coaxial cable
T-connectors
BNC's
Terminators
Ground, usually a ground chain
Internetworking with Cisco and Microsoft Technologies pg. 226 and 227
Star
How do geographers define the concept of overpopulation?
They define it as a surplus in the human population in the ecumene.
How do X - 25 gateways link hosts and LANs?
Remote LANs can communicate with host mainframes using X.25 gateway. For that a Gateway PC with an adapter Card functions as a cluster conroller and runs special gateway software that contains QLLC protocol.
What is the maximum number of bits that can be borrowed to create a subnet for a Class C network?
You can borrow 6 bits. Which would create a 255.255.255.252 subnet mask, but this subnet only contains 2 usable IP addresses.
7 bits would be 255.255.255.254, but that subnet is too small to have any use in the real world.
What is the difference between a photonic cross-connect PXC and an Optical cross-connect OXC?
A PXC is a totally transparant OXC, that is a OXC without O-E-O conversions.
UDP and TCP both are transport layer protocols. UDP is connection less and TCP is connection oriented. UDP is preferred over TCP when large amount data is to be sent like on skype or video conferencing .
What are examples of public address ranges?
Consist of the upper-left cell address and the lower-right cell address, separated by a colon
How do you enable the Wi-Fi feature on the Dell Inspiron 530s desktop computer?
You need to get a wireless card, connect to your computer and have fun.
The word subnetwork (usually shortened to subnet) has two related meanings. In the older and more general meaning, it meant one physical network of an internetwork. In the Internet Protocol (IP), a subnetwork is a division of a classful network. The rest of this article is about the second meaning. Subnetting an IP network allows a single large network to be broken down into what appear (logically) to be several smaller ones. It was originally introduced before the introduction of classful network numbers in IPv4, to allow a single site to have a number of local area networks. Even after the introduction of classful network numbers, subnetting continued to be useful, as it reduced the number of entries in the Internet-wide routing table (by hiding information about all the individual subnets inside a site). As a side benefit, it also resulted in reduced network overhead, by dividing the parts which receive IP broadcasts.
switch |swi ch |
noun
1 a device for making and breaking the connection in an electric circuit : the guard hit a switch and the gate swung open.
• Computing a program variable that activates or deactivates a certain function of a program.
2 an act of adopting one policy or way of life, or choosing one type of item, in place of another; a change, esp. a radical one : his friends were surprised at his switch from newspaper owner to farmer.
3 a slender flexible shoot cut from a tree.
4 a junction of two railroad tracks, with a pair of linked tapering rails that can be moved laterally to allow a train to pass from one line to the other.
5 a tress of false or detached hair tied at one end, used in hairdressing to supplement natural hair.
verb [ trans. ]
1 change the position, direction, or focus of : the company switched the boats to other routes.
• adopt (something different) in place of something else; change : she's managed to switch careers.
• [ intrans. ] adopt a new policy, position, way of life, etc. : she worked as a librarian and then switched to journalism.
• substitute (two items) for each other; exchange : after ten minutes, listener and speaker switch roles.
2 archaic beat or flick with or as if with a switch.
PHRASAL VERBS
switch something off turn off an electrical device. • ( switch off) informal cease to pay attention : as he waffles on, I switch off.
switch something on turn on an electrical device.
DERIVATIVES
switchable |ˈswɪtʃəbəl| adjective
ORIGIN late 16th cent. (denoting a thin tapering riding whip): probably from Low German.
Discuss the advantages and disadvantages of this system?
You do not name the system. Need a noun here.
oh and that is not an actual question unless it is rhetorical or you are expressing disbelief by repeating what you are supposed to do, i.e. if a teacher tells you to do something, (Discuss the advantages and disadvantages of this system), and you ask a question to clarify it.
Oh and since you never actually name any system in your question then it can be listed and grouped with anything, such as politics, computers, hierarchy, etc.
What is the network port numbers?
If a network address is thought of as a physical address for a building then a port would be a room within the building. THe function of a port is to allow software to listen for or send out communication that is specifically related to it's function. For example, most internet (http) traffic is on port 80, FTP (File Transfer Protocol) sends and listens on Port 21, other services use other ports. This allows a single computer with a single IP address to be both a web server and a file server.
6 strand fiber optic cable color code?
Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Slate, Aqua and Rose
What would you use a crossover cable for?
To connect two devices of the same type together.
e.g. You would use a crossover cable to connect a router to another router, a switch to another switch or a computer to another computer.
If you are connecting diferent devices together, such as a router to a switch, a straight through cable should be used.
To begin we have to define "networking" Websters dictionary defines "networking" as: : the establishment or use of a computer network.
Basically, communication of data between two or more computers. In the early days of computers, local area networking was handled primarily through the use of serial communications. Token Ring, AppleTalk and Arcnet were some of the earlier protocols used for local area networking. With the introduction of "ethernet" cabling around 1975, and the development of TCP/IP, speeds increased and we now have local area networks capable of speeds exceeding 10Gbs.
Historically, wide area networking (Networks between computers not physically close to each other) was usually handled by modems over telephone lines. Although, in industrial applications point to point "high speed" circuits were made available at great expense. Some of these protocols include T-1 and T-3 connections and ISDN systems. With the invention of the internet and it's wide acceptance, and the introduction of "high speed" internet connections such as DSL, Cable and Fiber in the Home, networking began to use TCP/IP protocols for wide area networks more and more, with the majority of interconnected computers now using TCP/IP for both LAN and WAN applications.
Over the coming years we'll see networking evolve even further with the adoption of IPv6. Currently the majority of networks are using IPv4 which has a maximum of just over 4.2 billion unique addresses. Whereas IPv6 is capable of approximatley 340 Trillion unique addresses. Other innovations that we'll see in the world of networking will include wide area fiber optic connections, new transmission protocols that will raise current internet connection speeds from an average of around 3Mbs in 2010 to a speeds in excess of 100mb in the coming decades.
Networking is exciting. My first LAN was a Token ring network running on coaxial cable with a 4 Mbs speed and latency that was practically measured in seconds. Now I'm in charge of an ethernet network that is comprise primarily of Gigabit connections with a few 100Mbs connections and a couple of 10Gbs connections. My first WAN was a 300 baud modem that I used to dial up a connection with my buddy across town, now I have a 20Mbs internet connection running on fiber optic lines. We'll see how networking evolves in the future, but it looks to be extremely promising.
